graphql/utilities/typeFromAST.js

A Query Language and Runtime which can target any service.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.typeFromAST = typeFromAST;

var _kinds = require("../language/kinds");

var _definition = require("../type/definition");

/**
 * Copyright (c) 2015-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 *  strict
 */
function typeFromAST(schema, typeNode) {
  /* eslint-enable no-redeclare */
  var innerType;

  if (typeNode.kind === _kinds.Kind.LIST_TYPE) {
    innerType = typeFromAST(schema, typeNode.type);
    return innerType && (0, _definition.GraphQLList)(innerType);
  }

  if (typeNode.kind === _kinds.Kind.NON_NULL_TYPE) {
    innerType = typeFromAST(schema, typeNode.type);
    return innerType && (0, _definition.GraphQLNonNull)(innerType);
  }

  if (typeNode.kind === _kinds.Kind.NAMED_TYPE) {
    return schema.getType(typeNode.name.value);
  }
  /* istanbul ignore next */


  throw new Error("Unexpected type kind: ".concat(typeNode.kind, "."));
}